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Abstract

The propagation of shear-Alfven waves in an incompressible plasma is considered in the vicinity of an X-line of the magnetic field. A small dissipation leads to a discrete spectrum of weakly damped MHD modes with a dissipative layer in the vicinity of the separatrices. Finite amplitude perturbations imposed from the boundaries and propagating perpendicular to a separatrix are then considered and the characteristic timescale of their evolution is derived.

Additional information

Authors: BULANOV S V, JET JOINT UNDERTAKING, ABINGDON, OXON. (GB);GENERAL PHYSICS INSTITUTE OF ACAD. SCI., MOSCOW (SU);SHASHARINA S G, JET JOINT UNDERTAKING, ABINGDON, OXON. (GB);GENERAL PHYSICS INSTITUTE OF ACAD. SCI., MOSCOW (SU);PEGORARO F JET JOINT UNDERTAKING, ABINGDON, OXON. (GB), JET JOINT UNDERTAKING, ABINGDON, OXON. (GB);GENERAL PHYSICS INSTITUTE OF ACAD. SCI., MOSCOW (SU);GENERAL PHYSICS INSTITUTE OF ACAD. SCI., MOSCOW (SU), JET JOINT UNDERTAKING, ABINGDON, OXON. (GB);GENERAL PHYSICS INSTITUTE OF ACAD. SCI., MOSCOW (SU)
Bibliographic Reference: REPORT: JET-P(89)52 EN (1989) AVAILABLE FROM THE PUBLICATIONS OFFICER, JET JOINT UNDERTAKING, ABINGDON, OXON. OX14 3EA (GB)
Record Number: 1989128069000 / Last updated on: 1990-10-01
Category: PUBLICATION
Available languages: en